Balaklava Chess

This variant has been created in 1994 by Gianluca Vecchi, member of
AISE.

The rules are simple:

In addition to their orthodox powers all the units (pieces and pawns)
may move, but not capture, as chess knights.

The King is orthodox (i.e. cannot move as knight).

Instead of the knight, on the squares b1/g1 and b8/g8 there is a new
piece, the Mammoth: it moves and captures two squares in any direction,
leaping the intervening one even if occupied (i.e. it has the powers of
Alfil and Dabbaba). As the other units, the Mammoth may move, but not capture,
as a knight.

The pawns may only move forward, and cannot move to their promotion
rank with a knight move. En passant is not allowed.

All the other rules of chess apply.

Here is a self-played sample game: it has no strategical meanings, it
just shows the movements of the units and a possibility of mating series
using the new powers.